btcoex.c (54f10b059e6592598a9b66fabf0cde8be1d2780c) btcoex.c (8227bf455469a153d5fa2a810653a669a2595ebd)
1/*
2 * Copyright (c) 2009-2011 Atheros Communications Inc.
3 *
4 * Permission to use, copy, modify, and/or distribute this software for any
5 * purpose with or without fee is hereby granted, provided that the above
6 * copyright notice and this permission notice appear in all copies.
7 *
8 * THE SOFTWARE IS PROVIDED "AS IS" AND THE AUTHOR DISCLAIMS ALL WARRANTIES

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37
38static const u32 ar9003_wlan_weights[ATH_BTCOEX_STOMP_MAX]
39 [AR9300_NUM_WLAN_WEIGHTS] = {
40 { 0xfffffff0, 0xfffffff0, 0xfffffff0, 0xfffffff0 }, /* STOMP_ALL */
41 { 0x88888880, 0x88888880, 0x88888880, 0x88888880 }, /* STOMP_LOW */
42 { 0x00000000, 0x00000000, 0x00000000, 0x00000000 }, /* STOMP_NONE */
43};
44
1/*
2 * Copyright (c) 2009-2011 Atheros Communications Inc.
3 *
4 * Permission to use, copy, modify, and/or distribute this software for any
5 * purpose with or without fee is hereby granted, provided that the above
6 * copyright notice and this permission notice appear in all copies.
7 *
8 * THE SOFTWARE IS PROVIDED "AS IS" AND THE AUTHOR DISCLAIMS ALL WARRANTIES

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37
38static const u32 ar9003_wlan_weights[ATH_BTCOEX_STOMP_MAX]
39 [AR9300_NUM_WLAN_WEIGHTS] = {
40 { 0xfffffff0, 0xfffffff0, 0xfffffff0, 0xfffffff0 }, /* STOMP_ALL */
41 { 0x88888880, 0x88888880, 0x88888880, 0x88888880 }, /* STOMP_LOW */
42 { 0x00000000, 0x00000000, 0x00000000, 0x00000000 }, /* STOMP_NONE */
43};
44
45static const u32 ar9462_wlan_weights[ATH_BTCOEX_STOMP_MAX]
46 [AR9300_NUM_WLAN_WEIGHTS] = {
47 { 0x01017d01, 0x41414101, 0x41414101, 0x41414141 }, /* STOMP_ALL */
48 { 0x01017d01, 0x3b3b3b01, 0x3b3b3b01, 0x3b3b3b3b }, /* STOMP_LOW */
49 { 0x01017d01, 0x01010101, 0x01010101, 0x01010101 }, /* STOMP_NONE */
50 { 0x01017d01, 0x013b0101, 0x3b3b0101, 0x3b3b013b }, /* STOMP_LOW_FTP */
51};
52
45void ath9k_hw_init_btcoex_hw(struct ath_hw *ah, int qnum)
46{
47 struct ath_btcoex_hw *btcoex_hw = &ah->btcoex_hw;
48 const struct ath_btcoex_config ath_bt_config = {
49 .bt_time_extend = 0,
50 .bt_txstate_extend = true,
51 .bt_txframe_extend = true,
52 .bt_mode = ATH_BT_COEX_MODE_SLOTTED,

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188
189 REG_RMW_FIELD(ah, AR_QUIET1, AR_QUIET1_QUIET_ACK_CTS_ENABLE, 1);
190 REG_RMW_FIELD(ah, AR_PCU_MISC, AR_PCU_BT_ANT_PREVENT_RX, 0);
191
192 ath9k_hw_cfg_output(ah, btcoex->wlanactive_gpio,
193 AR_GPIO_OUTPUT_MUX_AS_RX_CLEAR_EXTERNAL);
194}
195
53void ath9k_hw_init_btcoex_hw(struct ath_hw *ah, int qnum)
54{
55 struct ath_btcoex_hw *btcoex_hw = &ah->btcoex_hw;
56 const struct ath_btcoex_config ath_bt_config = {
57 .bt_time_extend = 0,
58 .bt_txstate_extend = true,
59 .bt_txframe_extend = true,
60 .bt_mode = ATH_BT_COEX_MODE_SLOTTED,

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196
197 REG_RMW_FIELD(ah, AR_QUIET1, AR_QUIET1_QUIET_ACK_CTS_ENABLE, 1);
198 REG_RMW_FIELD(ah, AR_PCU_MISC, AR_PCU_BT_ANT_PREVENT_RX, 0);
199
200 ath9k_hw_cfg_output(ah, btcoex->wlanactive_gpio,
201 AR_GPIO_OUTPUT_MUX_AS_RX_CLEAR_EXTERNAL);
202}
203
204static void ath9k_hw_btcoex_enable_mci(struct ath_hw *ah)
205{
206 struct ath_btcoex_hw *btcoex = &ah->btcoex_hw;
207 int i;
208
209 for (i = 0; i < AR9300_NUM_BT_WEIGHTS; i++)
210 REG_WRITE(ah, AR_MCI_COEX_WL_WEIGHTS(i),
211 btcoex->wlan_weight[i]);
212
213 REG_RMW_FIELD(ah, AR_QUIET1, AR_QUIET1_QUIET_ACK_CTS_ENABLE, 1);
214 btcoex->enabled = true;
215}
216
196void ath9k_hw_btcoex_enable(struct ath_hw *ah)
197{
198 struct ath_btcoex_hw *btcoex_hw = &ah->btcoex_hw;
199
200 switch (btcoex_hw->scheme) {
201 case ATH_BTCOEX_CFG_NONE:
202 break;
203 case ATH_BTCOEX_CFG_2WIRE:
204 ath9k_hw_btcoex_enable_2wire(ah);
205 break;
206 case ATH_BTCOEX_CFG_3WIRE:
207 ath9k_hw_btcoex_enable_3wire(ah);
208 break;
217void ath9k_hw_btcoex_enable(struct ath_hw *ah)
218{
219 struct ath_btcoex_hw *btcoex_hw = &ah->btcoex_hw;
220
221 switch (btcoex_hw->scheme) {
222 case ATH_BTCOEX_CFG_NONE:
223 break;
224 case ATH_BTCOEX_CFG_2WIRE:
225 ath9k_hw_btcoex_enable_2wire(ah);
226 break;
227 case ATH_BTCOEX_CFG_3WIRE:
228 ath9k_hw_btcoex_enable_3wire(ah);
229 break;
230 case ATH_BTCOEX_CFG_MCI:
231 ath9k_hw_btcoex_enable_mci(ah);
232 return;
209 }
210
211 REG_RMW(ah, AR_GPIO_PDPU,
212 (0x2 << (btcoex_hw->btactive_gpio * 2)),
213 (0x3 << (btcoex_hw->btactive_gpio * 2)));
214
215 ah->btcoex_hw.enabled = true;
216}
217EXPORT_SYMBOL(ath9k_hw_btcoex_enable);
218
219void ath9k_hw_btcoex_disable(struct ath_hw *ah)
220{
221 struct ath_btcoex_hw *btcoex_hw = &ah->btcoex_hw;
222 int i;
223
233 }
234
235 REG_RMW(ah, AR_GPIO_PDPU,
236 (0x2 << (btcoex_hw->btactive_gpio * 2)),
237 (0x3 << (btcoex_hw->btactive_gpio * 2)));
238
239 ah->btcoex_hw.enabled = true;
240}
241EXPORT_SYMBOL(ath9k_hw_btcoex_enable);
242
243void ath9k_hw_btcoex_disable(struct ath_hw *ah)
244{
245 struct ath_btcoex_hw *btcoex_hw = &ah->btcoex_hw;
246 int i;
247
248 btcoex_hw->enabled = false;
249 if (btcoex_hw->scheme == ATH_BTCOEX_CFG_MCI) {
250 ath9k_hw_btcoex_bt_stomp(ah, ATH_BTCOEX_STOMP_NONE);
251 for (i = 0; i < AR9300_NUM_BT_WEIGHTS; i++)
252 REG_WRITE(ah, AR_MCI_COEX_WL_WEIGHTS(i),
253 btcoex_hw->wlan_weight[i]);
254 }
224 ath9k_hw_set_gpio(ah, btcoex_hw->wlanactive_gpio, 0);
225
226 ath9k_hw_cfg_output(ah, btcoex_hw->wlanactive_gpio,
227 AR_GPIO_OUTPUT_MUX_AS_OUTPUT);
228
229 if (btcoex_hw->scheme == ATH_BTCOEX_CFG_3WIRE) {
230 REG_WRITE(ah, AR_BT_COEX_MODE, AR_BT_QUIET | AR_BT_MODE);
231 REG_WRITE(ah, AR_BT_COEX_MODE2, 0);
232
233 if (AR_SREV_9300_20_OR_LATER(ah)) {
234 REG_WRITE(ah, AR_BT_COEX_WL_WEIGHTS0, 0);
235 REG_WRITE(ah, AR_BT_COEX_WL_WEIGHTS1, 0);
236 for (i = 0; i < AR9300_NUM_BT_WEIGHTS; i++)
237 REG_WRITE(ah, AR_BT_COEX_BT_WEIGHTS(i), 0);
238 } else
239 REG_WRITE(ah, AR_BT_COEX_WEIGHT, 0);
240
241 }
255 ath9k_hw_set_gpio(ah, btcoex_hw->wlanactive_gpio, 0);
256
257 ath9k_hw_cfg_output(ah, btcoex_hw->wlanactive_gpio,
258 AR_GPIO_OUTPUT_MUX_AS_OUTPUT);
259
260 if (btcoex_hw->scheme == ATH_BTCOEX_CFG_3WIRE) {
261 REG_WRITE(ah, AR_BT_COEX_MODE, AR_BT_QUIET | AR_BT_MODE);
262 REG_WRITE(ah, AR_BT_COEX_MODE2, 0);
263
264 if (AR_SREV_9300_20_OR_LATER(ah)) {
265 REG_WRITE(ah, AR_BT_COEX_WL_WEIGHTS0, 0);
266 REG_WRITE(ah, AR_BT_COEX_WL_WEIGHTS1, 0);
267 for (i = 0; i < AR9300_NUM_BT_WEIGHTS; i++)
268 REG_WRITE(ah, AR_BT_COEX_BT_WEIGHTS(i), 0);
269 } else
270 REG_WRITE(ah, AR_BT_COEX_WEIGHT, 0);
271
272 }
242
243 ah->btcoex_hw.enabled = false;
244}
245EXPORT_SYMBOL(ath9k_hw_btcoex_disable);
246
247static void ar9003_btcoex_bt_stomp(struct ath_hw *ah,
248 enum ath_stomp_type stomp_type)
249{
250 struct ath_btcoex_hw *btcoex = &ah->btcoex_hw;
273}
274EXPORT_SYMBOL(ath9k_hw_btcoex_disable);
275
276static void ar9003_btcoex_bt_stomp(struct ath_hw *ah,
277 enum ath_stomp_type stomp_type)
278{
279 struct ath_btcoex_hw *btcoex = &ah->btcoex_hw;
280 const u32 *weight = AR_SREV_9462(ah) ? ar9003_wlan_weights[stomp_type] :
281 ar9462_wlan_weights[stomp_type];
251 int i;
252
253 for (i = 0; i < AR9300_NUM_WLAN_WEIGHTS; i++) {
254 btcoex->bt_weight[i] = AR9300_BT_WGHT;
282 int i;
283
284 for (i = 0; i < AR9300_NUM_WLAN_WEIGHTS; i++) {
285 btcoex->bt_weight[i] = AR9300_BT_WGHT;
255 btcoex->wlan_weight[i] = ar9003_wlan_weights[stomp_type][i];
286 btcoex->wlan_weight[i] = weight[i];
256 }
257}
258
259/*
260 * Configures appropriate weight based on stomp type.
261 */
262void ath9k_hw_btcoex_bt_stomp(struct ath_hw *ah,
263 enum ath_stomp_type stomp_type)

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288}
289
290/*
291 * Configures appropriate weight based on stomp type.
292 */
293void ath9k_hw_btcoex_bt_stomp(struct ath_hw *ah,
294 enum ath_stomp_type stomp_type)

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